LCF-based Aspect Polarity Classification (基于局部上下文专注机制的方面级情感分类模型库)

Training & Inferring & Reproducing SOTA models of ABSA

Aspect-based Sentiment Analysis (GloVe / BERT).

Chinese Aspect-based Sentiment Analysis (中文方面级情感分类)

PyTorch Implementations.

We hope this repository will help you and sincerely request bug reports and Suggestions. If you like this repository you can star or share this repository to others.

Codes for our paper(s):

• Yang H, Zeng B. Enhancing Fine-grained Sentiment Classification Exploiting Local Context Embedding[J]. arXiv preprint arXiv:2010.00767, 2020.

• Yang H, Zeng B, Yang J, et al. A multi-task learning model for Chinese-oriented aspect polarity classification and aspect term extraction[J]. Neurocomputing, 419: 344-356.

• Zeng B, Yang H, Xu R, et al. Lcf: A local context focus mechanism for aspect-based sentiment classification[J]. Applied Sciences, 2019, 9(16): 3389.

Requirement

• Python 3.7 + (recommended)
• PyTorch >= 1.0
• transformers pip install transformers or conda install transformers
• Try to set batch_size=8 or max_seq_len=40 while out-of-memory error occurs.

Before Training

• Download the GloVe if you want to use the GloVe-based models.
• Download the domain-adapted BERT if you want to use state-of-the-art bert-based models.
• Set use_bert_spc=True to employ BERT-SPC input format and improve model performance.
• Set use_dual_bert=True to use dual BERTs for modeling local context and global context, respectively. Bert-based models need more computational resources, e.g. system memory.

Model Introduction

This repository provides a variety of APC models, especially the those based on the local context focus mechanisms, including:

Our LCF-based APC models

• LCA-LSTM

• LCA-GloVe

• LCA-BERT

• LCF-GloVe

• LCF-BERT

Other famous APC models

• LCFS-BERT

Phan M H, Ogunbona P O. Modelling context and syntactical features for aspect-based sentiment analysis[C]//Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics. 2020: 3211-3220.

The following models are forked from ABSA-PyTorch.

• AEN-BERT | BERT-BASE | BERT-SPC

Song Y, Wang J, Jiang T, et al. Attentional encoder network for targeted sentiment classification[J]. arXiv preprint arXiv:1902.09314, 2019.

• MGAN

Fan F, Feng Y, Zhao D. Multi-grained attention network for aspect-level sentiment classification[C]//Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing. 2018: 3433-3442.

• AOA

Huang B, Ou Y, Carley K M. Aspect level sentiment classification with attention-over-attention neural networks[C]//International Conference on Social Computing, Behavioral-Cultural Modeling and Prediction and Behavior Representation in Modeling and Simulation. Springer, Cham, 2018: 197-206.

• TNet

Li X, Bing L, Lam W, et al. Transformation Networks for Target-Oriented Sentiment Classification[C]//Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers). 2018: 946-956.

• Cabasc

Liu Q, Zhang H, Zeng Y, et al. Content attention model for aspect based sentiment analysis[C]//Proceedings of the 2018 World Wide Web Conference. 2018: 1023-1032.

• RAM

Chen P, Sun Z, Bing L, et al. Recurrent attention network on memory for aspect sentiment analysis[C]//Proceedings of the 2017 conference on empirical methods in natural language processing. 2017: 452-461.

• MemNet

Tang D, Qin B, Liu T. Aspect Level Sentiment Classification with Deep Memory Network[C]//Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing. 2016: 214-224.

• IAN

Ma D, Li S, Zhang X, et al. Interactive attention networks for aspect-level sentiment classification[C]//Proceedings of the 26th International Joint Conference on Artificial Intelligence. 2017: 4068-4074.

• ATAE-LSTM

Wang Y, Huang M, Zhu X, et al. Attention-based LSTM for aspect-level sentiment classification[C]//Proceedings of the 2016 conference on empirical methods in natural language processing. 2016: 606-615.

• TD-LSTM

Tang D, Qin B, Feng X, et al. Effective LSTMs for Target-Dependent Sentiment Classification[C]//Proceedings of COLING 2016, the 26th International Conference on Computational Linguistics: Technical Papers. 2016: 3298-3307.

• LSTM

Datasets

• ACL Twitter dataset
• Chinese Review Datasets
• Multilingual dataset (combining of above datasets)
• SemEval-2014
• SemEval-2015 (From ASGAN)
• SemEval-2016 (From ASGAN)

Extra Hyperparameters

We list the valid parameters for each model for reference.

Although datasets and models and be combined in most scenarios, some combinations are not recommended. Such Chinese dataset and BERT-base-uncased (English), Chinese and LCFS-BERT.

Performance of BERT-based Models

The state-of-the-art benchmarks of the ABSA task can be found at NLP-progress (See Section of SemEval-2014 subtask4) "D", "S" and "A" denote dual-BERT, single-BERT and adapted-BERT, respectively. "N/A" means waiting to test.

We provides a training log of LCF-BERT based on domain-adapted BERT to guide reproductions. Try to set other random seeds to explore different results. Learn to train the domain adapted BERT pretrained models from domain-adapted-atsc, and place the pre-trained models in bert_pretrained_models.

Training

Training single model with cmd:

python train.py

or running multiple experiments using config file

python train.py --config experiments_apc.json

Inferring

We release the universal batch inferring of aspect polarity for all listed APC models! Check here and follow the instructions to do batch inferring.

Acknowledgement

This work is based on the repositories of ABSA-PyTorch and the pytorch-transformers. Thanks to the authors for their devotion and Thanks to everyone who offered assistance. Feel free to report any bug or discussing with us.

Contributions & Bug Reports.

This Repository is under development. There may be unknown problems in the code. We hope to get your help to make it easier to use and stable.

Citation

If this repository is helpful to you, please cite our papers:

@article{yang2021multi,
    title={A multi-task learning model for chinese-oriented aspect polarity classification and aspect term extraction},
    author={Yang, Heng and Zeng, Biqing and Yang, JianHao and Song, Youwei and Xu, Ruyang},
    journal={Neurocomputing},
    volume={419},
    pages={344--356},
    year={2021},
    publisher={Elsevier}
}
@article{zeng2019lcf,
    title={LCF: A Local Context Focus Mechanism for Aspect-Based Sentiment Classification},
    author={Zeng, Biqing and Yang, Heng and Xu, Ruyang and Zhou, Wu and Han, Xuli},
    journal={Applied Sciences},
    volume={9},
    number={16},
    pages={3389},
    year={2019},
    publisher={Multidisciplinary Digital Publishing Institute}
}
@misc{yang2020enhancing,
    title={Enhancing Fine-grained Sentiment Classification Exploiting Local Context Embedding}, 
    author={Heng Yang and Biqing Zeng},
    year={2020},
    eprint={2010.00767},
    archivePrefix={arXiv},
    primaryClass={cs.CL}
}

Related Repositories

ABSA-PyTorch

domain-adapted-atsc

LCFS-BERT